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{{Era|UNSC|HCW}}
{{Status|Canon}}
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'''Energy barriers''', sometimes referred to as '''energy fields''', are a type of visible energy field that [[Covenant Empire|the Covenant]] use in [[airlock]]s and for [[Boarding (attack)|boarding parties]] to board enemy ships.<ref>'''[[Halo: Contact Harvest]]''', ''page 98''</ref><ref>'''Halo: Contact Harvest''', ''page 309''</ref>
[[File:Energy_barrier.jpg|thumb|250px|An energy barrier in the hangar bay of a [[Covenant corvette]].]]
'''Energy barriers''', sometimes referred to as '''energy fields''', are a type of visible energy field used to separate a pressurized environment from the vacuum of space.<ref>'''Halo: Contact Harvest''', ''page 98''</ref><ref>'''Halo: Contact Harvest''', ''page 309''</ref> Energy barriers differ from conventional [[Energy shielding|energy shielding]] because they allow solid matter through, but not gases, such as [[oxygen]] and neon. This makes them a common sight in hangar bays.


Energy barriers are useful because they allow solid matter through, but not gases, such as [[oxygen]] and neon. However, before matter passes through, the pressure on both sides must be equalized, to minimize the risk of explosive decompression.<ref name="ch99">'''Halo: Contact Harvest''', ''page 99''</ref>
The Covenant use energy barriers as hangar doors, in [[airlock]]s and for [[Naval boarding|boarding parties]] to board enemy ships. Energy barriers are present on [[R'sisho-pattern Tick]], on the end of the craft's penetration tip.<ref>'''Halo 2''', level ''[[Cairo Station]]''</ref> Energy barriers are also used as exterior doors in [[hangar bay]]s on Covenant starships.<ref name = "Truth and Reconciliation">'''Halo: Combat Evolved''', campaign level, ''[[The Truth and Reconciliation]]''</ref> The barriers can also be configured to block all vehicles or personnel or allow them to pass through when required.<ref>'''Halo: Reach''', campaign level, ''[[Long Night of Solace (level)|Long Night of Solace]]''</ref> It is interesting to note that [[Covenant]] [[signal unit]]s work through Covenant energy barriers, while human [[COM]] units do not.<ref name="ch99">'''Halo: Contact Harvest''', ''page 99''</ref><ref>'''Halo: Contact Harvest''', ''page 132''</ref>


It is interesting to note that [[Signal Unit]]s work through energy barriers, while [[COM]] units do not.<ref name="ch99"/><ref>'''Halo: Contact Harvest''', page 132</ref> Energy barriers are also present on [[Covenant Boarding Craft]], on the end of the craft's penetration tip.<ref>'''[[Halo 2]]''', level ''[[Cairo Station (level)|Cairo Station]]''</ref> They can also be garrisoned with infantry in ''[[Halo Wars]]''' [[Skirmish]] mode.
Before the [[Human-Covenant War]], the [[UNSC]] had begun to experiment with energy barriers. After reverse-engineering Covenant technology, the UNSC was able to easily produce and deploy energy barriers.<ref>[https://blogs.halowaypoint.com/en-us/blogs/headlines/posts/the-halo-bulletin-5-14-14 '''Halo Waypoint''': ''The Halo Bulletin 5.14.14'']</ref> By [[2546]], the UNSC had begun to employ energy barrier technology in their space installations and ships in a fashion similar to the Covenant. Examples of human energy barriers include: hangar bay doors on the ''[[Argent Moon]]'',<ref>'''[[Halo 5: Guardians]]''', campaign level, ''[[Blue Team (level)|Blue Team]]''</ref> the hangar bay doors on the Sabre engineering facility on the [[Refit station|orbital dockyard]] ''[[Anchor 9]]'',<ref>'''Halo: Reach''', multiplayer map, ''[[Anchor 9 (map)|Anchor 9]]''</ref> and the windows of the {{Class|Charon|light frigate}} {{UNSCShip|Forward Unto Dawn}}.<ref>'''Halo 4''', campaign level ''[[Dawn]]''</ref> As the most advanced warship in the [[UNSC Navy|Fleet]], the hangar bays of the {{UNSCShip|Infinity}} are also equipped with energy barriers.<ref>'''Spartan Ops''': [[S1/Exodus|S1E10 ''Exodus'']]</ref>


Energy barriers are also used as exterior doors in [[hangar bay]]s on Covenant starships. These include the [[shuttle bay door]]s on [[CCS-class Battlecruiser]]s,<ref>'''[[Halo: Combat Evolved]]''', campaign level ''[[The Truth and Reconciliation]]''</ref> as well as the hangar bays on [[Covenant corvette]]s. The barriers can also be configured to block all vehicles or personnel or allow them to pass through when required.<ref>'''[[Halo: Reach]]''', campaign level ''[[Long Night of Solace (level)|Long Night of Solace]]''</ref>
Other energy barriers are used for security purposes. Covenant [[holding chamber|prison cells]], such as those found in the ''[[Truth and Reconciliation]]''{{'}}s brig, utilized energy barriers that stopped all solid matter from passing through.{{Ref/Reuse|Truth and Reconciliation}}
 
During the [[Battle for Zeta Halo]], the [[Banished]] used energy barriers for a variety of purposes, often in lieu of physical windows.{{Ref/Quest|Id=Excavation Site|HI|Connections|Excavation Site}}
 
==Gameplay==
In the ''Halo'' games, energy barriers are typically encountered in levels featuring a Covenant ship.
 
In ''[[Halo: Combat Evolved]]'', it is possible to operate the shuttle bay doors of the ''[[Truth and Reconciliation]]''. On the level [[The Truth and Reconciliation]], the player is able to access the doors by heading to the third floor of the shuttle bay and pressing '''X''' on the control panel. This is required to complete the mission, so the player can escape in a [[Taaku Xur-pattern Spirit|Spirit]] with [[Jacob Keyes|Keyes]].
 
In ''[[Halo: Reach]]'', on the [[Covenant corvette]] ''[[Ardent Prayer]]'' in the level ''[[Long Night of Solace (level)|Long Night of Solace]]'', the shields operate differently: after [[SPARTAN-B312|Noble Six]] presses a button, the shields still remain in place over the bay, but ships can now go in and out of them. Presumably they are simply lowered to a point things could travel through them while remaining in place to hold the atmosphere in the bay as the ship is in space.<ref>'''Halo: Reach''', campaign level ''[[Long Night of Solace (level)|Long Night of Solace]]''</ref>
 
==Gallery==
<gallery>
File:H5G-Open Energy Barrier.png|An open human energy barrier on ''[[Argent Moon]]''.
File:H5G-Closed Energy Barrier.png|The same energy barrier closed.
File:HTMCC-HCEA CCS Holding Chamber.jpg|Another type of energy barrier used by the Covenant to contain prisoners in holding cells.
File:HINF Infinity energy barrier.png|John-117 gets thrown through the ''Infinity''{{'}}s energy barrier.
File:HINF Ghost of Gbraakon Hangar Energy Barrier.png|An energy barrier covering one of the ''[[Ghost of Gbraakon]]''{{'}}s hangar bays.
File:HINF Site Novem Laser Controls.png|An energy barrier next to the controls for the [[Banished]] mining laser at [[Site Novem]].
File:HINF Tremonius Energy Barrier.png|[[Tremonius]] standing in front of an energy barrier while facing off against [[John-117]] underneath [[Outpost Tremonius]].
File:HINF Riven Gate Energy Barrier Banshee.png|An energy barrier over a Banshee hangar at [[Riven Gate (location)|Riven Gate]].
</gallery>


==List of appearances==
==List of appearances==
*''[[Halo: Combat Evolved]]'' {{1st}}
*''[[Halo: Combat Evolved]]'' {{1st}}
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo 2]]''
*''[[Halo 3]]''
*''[[Halo 3]]''
*''[[Halo: Reach]]''
*''[[Halo: First Strike]]''
*''[[Halo: Contact Harvest]]''
*''[[Halo: Contact Harvest]]''
*''[[Halo Legends]]''
*''[[Halo Legends]]''
**''[[The Package]]''
**''[[The Package (animated short)|The Package]]''
*''[[Halo: Reach]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
*''[[Halo 2: Anniversary]]''
*''[[Hunt the Truth]]''
*''[[Halo 5: Guardians]]''
*''[[Halo: Tales from Slipspace]]
**''[[Hunting Party]]''
*''[[Halo: Envoy]]''
*''[[Halo: Retribution]]''
*''[[Halo Infinite]]''
*''[[Halo: Epitaph]]''
*''[[Halo: Age of Retribution]]''


==Sources==
==Sources==
<references/>
{{Ref/Sources}}
[[Category:Covenant technology]]
 
[[Category:Security technology]]
[[Category:Shield technology]]

Latest revision as of 12:26, November 8, 2024

Were you looking for Shield doors?
An energy barrier in the hangar bay of a Covenant corvette.

Energy barriers, sometimes referred to as energy fields, are a type of visible energy field used to separate a pressurized environment from the vacuum of space.[1][2] Energy barriers differ from conventional energy shielding because they allow solid matter through, but not gases, such as oxygen and neon. This makes them a common sight in hangar bays.

The Covenant use energy barriers as hangar doors, in airlocks and for boarding parties to board enemy ships. Energy barriers are present on R'sisho-pattern Tick, on the end of the craft's penetration tip.[3] Energy barriers are also used as exterior doors in hangar bays on Covenant starships.[4] The barriers can also be configured to block all vehicles or personnel or allow them to pass through when required.[5] It is interesting to note that Covenant signal units work through Covenant energy barriers, while human COM units do not.[6][7]

Before the Human-Covenant War, the UNSC had begun to experiment with energy barriers. After reverse-engineering Covenant technology, the UNSC was able to easily produce and deploy energy barriers.[8] By 2546, the UNSC had begun to employ energy barrier technology in their space installations and ships in a fashion similar to the Covenant. Examples of human energy barriers include: hangar bay doors on the Argent Moon,[9] the hangar bay doors on the Sabre engineering facility on the orbital dockyard Anchor 9,[10] and the windows of the Charon-class light frigate UNSC Forward Unto Dawn.[11] As the most advanced warship in the Fleet, the hangar bays of the UNSC Infinity are also equipped with energy barriers.[12]

Other energy barriers are used for security purposes. Covenant prison cells, such as those found in the Truth and Reconciliation's brig, utilized energy barriers that stopped all solid matter from passing through.[4]

During the Battle for Zeta Halo, the Banished used energy barriers for a variety of purposes, often in lieu of physical windows.[13]

Gameplay[edit]

In the Halo games, energy barriers are typically encountered in levels featuring a Covenant ship.

In Halo: Combat Evolved, it is possible to operate the shuttle bay doors of the Truth and Reconciliation. On the level The Truth and Reconciliation, the player is able to access the doors by heading to the third floor of the shuttle bay and pressing X on the control panel. This is required to complete the mission, so the player can escape in a Spirit with Keyes.

In Halo: Reach, on the Covenant corvette Ardent Prayer in the level Long Night of Solace, the shields operate differently: after Noble Six presses a button, the shields still remain in place over the bay, but ships can now go in and out of them. Presumably they are simply lowered to a point things could travel through them while remaining in place to hold the atmosphere in the bay as the ship is in space.[14]

Gallery[edit]

  • An open human energy barrier on Argent Moon.

    An open human energy barrier on Argent Moon.

  • The same energy barrier closed.

    The same energy barrier closed.

  • Another type of energy barrier used by the Covenant to contain prisoners in holding cells.

    Another type of energy barrier used by the Covenant to contain prisoners in holding cells.

  • John-117 gets thrown through the Infinity's energy barrier.

    John-117 gets thrown through the Infinity's energy barrier.

  • An energy barrier covering one of the Ghost of Gbraakon's hangar bays.

    An energy barrier covering one of the Ghost of Gbraakon's hangar bays.

  • An energy barrier next to the controls for the Banished mining laser at Site Novem.

    An energy barrier next to the controls for the Banished mining laser at Site Novem.

  • Tremonius standing in front of an energy barrier while facing off against John-117 underneath Outpost Tremonius.

    Tremonius standing in front of an energy barrier while facing off against John-117 underneath Outpost Tremonius.

  • An energy barrier over a Banshee hangar at Riven Gate.

    An energy barrier over a Banshee hangar at Riven Gate.

List of appearances[edit]

Sources[edit]

  1. ^ Halo: Contact Harvest, page 98
  2. ^ Halo: Contact Harvest, page 309
  3. ^ Halo 2, level Cairo Station
  4. ^ a b Halo: Combat Evolved, campaign level, The Truth and Reconciliation
  5. ^ Halo: Reach, campaign level, Long Night of Solace
  6. ^ Halo: Contact Harvest, page 99
  7. ^ Halo: Contact Harvest, page 132
  8. ^ Halo Waypoint: The Halo Bulletin 5.14.14
  9. ^ Halo 5: Guardians, campaign level, Blue Team
  10. ^ Halo: Reach, multiplayer map, Anchor 9
  11. ^ Halo 4, campaign level Dawn
  12. ^ Spartan Ops: S1E10 Exodus
  13. ^ Halo Infinite, campaign mission Connections: Excavation Site
  14. ^ Halo: Reach, campaign level Long Night of Solace
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